Towards the theory of pollinator-mediated gene flow

被引：10

作者：

Cresswell, JE ^{[1
]}

机构：

[1] Univ Exeter, Sch Biol Sci, Hatherly Labs, Exeter EX4 4PS, Devon, England

来源：

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES | 2003年 / 358卷 / 1434期

关键词：

foraging theory; pollen; pollination;

D O I：

10.1098/rstb.2003.1286

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

I present a new exposition of a model of gene flow by animal-mediated pollination between a source population and a sink population. The model's parameters describe two elements: (i) the expected portion of the source's paternity that extends to the sink population; and (ii) the dilution of this portion by within-sink pollinations. The model is termed the portion-dilution model (PDM). The PDM is a parametric restatement of the conventional view of animal-mediated pollination. In principle, it can be applied to plant species in general. I formulate a theoretical value of the portion parameter that maximizes gene flow and prescribe this as a benchmark against which to judge the performance of real systems. Existing foraging theory can be used in solving part of the PDM, but a theory for source-to-sink transitions by pollinators is currently elusive.

引用

页码：1005 / 1008

页数：4

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